As the weather heats up, a number of organisations are using social media and PR stunts to raise their brand's profile. Here are our favourites...

The taxi app Uber is delivering ice creams on request in London, although it is facing some criticism over the cost, at £20 for five Mr Whippy's. It’s good profiling, but it remains to be seen whether it is good or bad PR.

Katherine Jenkins is promoting her new album and took the opportunity for photos in an ice cream van while working with the Good Morning team yesterday in London's Soutbank. Pictures of her serving were featured in several tabloids this morning.

Lady Tina's Garden, a coffee shop in Dalston, proved th­­at you don’t have to be ­­a goliath in the marketing world to make a splash. It has put a paddling pool outdoors, billed as the 'Dalston Lido', and invited customers to cool off with their coffee.

However, companies will want to ensure they are quick to take advantage of the hot weather and careful of their image. When the hot weather came last year, Tesco put up the price of its most affordable water and fizzy drinks by as much as 41 per cent, which was not received well by the press.